March weather in Rio Grande City, TX
The average temperature in Rio Grande City in March is 69.1°F (56.3°F–82.0°F). Average precipitation: 1.25 inches.
March is a spring month in Rio Grande City, and is cooler than the annual average of 74.4°F. Daily temperatures swing about 25.7°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 11h 50m. For travel, March is a comfortable month to visit.
Avg High
82.0°F
Avg Low
56.3°F
Precipitation
1.25 in
Daylight
11h 50m
March records in Rio Grande City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 97.0°F (1950) | 30.0°F (2022) | 0.90 in (1938) |
| March 2 | 102.9°F (2023) | 28.9°F (1962) | 0.53 in (2003) |
| March 3 | 102.0°F (2023) | 28.9°F (1980) | 0.14 in (1933) |
| March 4 | 99.0°F (1901) | 25.0°F (1971) | 0.36 in (1950) |
| March 5 | 98.1°F (1946) | 25.0°F (1971) | 1.27 in (2017) |
| March 6 | 104.0°F (1930) | 28.0°F (1965) | 1.72 in (1948) |
| March 7 | 105.1°F (1991) | 28.9°F (1989) | 0.72 in (1970) |
| March 8 | 98.1°F (1964) | 30.0°F (1982) | 2.55 in (2026) |
| March 9 | 102.9°F (1901) | 28.0°F (1931) | 0.65 in (2017) |
| March 10 | 98.1°F (1940) | 34.0°F (1932) | 2.45 in (2017) |
| March 11 | 104.0°F (1902) | 32.0°F (1948) | 0.96 in (1981) |
| March 12 | 102.9°F (1954) | 30.9°F (1948) | 2.23 in (1993) |
| March 13 | 102.9°F (1954) | 28.0°F (1968) | 0.80 in (2009) |
| March 14 | 108.0°F (1902) | 28.0°F (1968) | 1.58 in (1962) |
| March 15 | 106.0°F (1902) | 35.1°F (1970) | 0.70 in (1926) |
| March 16 | 102.0°F (2002) | 33.1°F (1962) | 1.10 in (1931) |
| March 17 | 100.0°F (1961) | 34.0°F (1962) | 1.20 in (1906) |
| March 18 | 99.0°F (1933) | 30.9°F (1969) | 1.20 in (1905) |
| March 19 | 100.9°F (1904) | 30.9°F (1934) | 1.10 in (1905) |
| March 20 | 102.0°F (1932) | 28.9°F (1934) | 0.20 in (1903) |
| March 21 | 105.1°F (1904) | 35.1°F (1986) | 1.46 in (1940) |
| March 22 | 102.0°F (1952) | 36.0°F (1970) | 2.00 in (1925) |
| March 23 | 102.0°F (1929) | 30.9°F (1968) | 0.59 in (1976) |
| March 24 | 102.0°F (1975) | 32.0°F (1968) | 0.40 in (1938) |
| March 25 | 102.9°F (1928) | 35.1°F (1952) | 1.28 in (1940) |
| March 26 | 102.0°F (1928) | 32.0°F (1969) | 1.20 in (1904) |
| March 27 | 107.1°F (1950) | 30.0°F (1996) | 0.55 in (1930) |
| March 28 | 102.9°F (1928) | 39.0°F (1931) | 3.44 in (2025) |
| March 29 | 102.9°F (1946) | 39.0°F (1931) | 2.00 in (1922) |
| March 30 | 106.0°F (1946) | 35.1°F (1930) | 1.20 in (2012) |
| March 31 | 108.0°F (1954) | 25.0°F (1987) | 1.24 in (1965) |